RFR: 8293496: ProblemList runtime/os/TestTracePageSizes.java on linux-x64

[Daniel D. Daugherty]

A trivial fix to ProblemList runtime/os/TestTracePageSizes.java on linux-x64.

-------------

Commit messages:
 - 8293496: ProblemList runtime/os/TestTracePageSizes.java on linux-x64

Changes: https://git.openjdk.org/jdk/pull/10201/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=10201&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8293496
  Stats: 6 lines in 1 file changed: 0 ins; 0 del; 6 mod
  Patch: https://git.openjdk.org/jdk/pull/10201.diff
  Fetch: git fetch https://git.openjdk.org/jdk pull/10201/head:pull/10201

PR: https://git.openjdk.org/jdk/pull/10201